He has a great interest in tennis and ______ it twice a week over the past year.
What way are you thinking of _______ rid of this kind of pollution?
---Who were those people with the banner? ---A group ______ itself the League for Peace.
Do you mind _______ alone at home?
---What’s made Ruth so upset? --- ______ three tickets to the folk music concert.
"Don't forget to come to my birthday party tomorrow." "__________."